hoffa. but we do believe that he may have seen a body being interred. and as a result of that, we did the ground-penetrating radar that showed an anomaly. >> he was last seen outside a restaurant in suburban detroit, his body has never been found. >>> trouble in the skies as fliers restrain an aggressive and unruly passenger. tom costello covers aviation for us. good morning. >> this happened on united flight 473 from chicago to orange county, california, last night. about an hour into the four-hour flight, a passenger began harassing other passengers and had to be held down by passengers. >> please help me! they're hurting me! i can't breathe. >> this is cell phone video shot onboard a united airlines flight from chicago to orange county, california. tuesday night, the 26-year-old was tackled by his fellow passengers who used their own belts to hold him down. nona was seated in the aisle behind him and said the model and actor started bothering her right away. >> and he turns around a little bit, starts a conversation, immediately starts being a little